Comments on: Execute Stored Procedure With ADO.NET Data Services

By: Danny

Danny — Fri, 07 Oct 2011 02:29:01 +0000

Thanks. I followed your steps, but my “Add Function Import” is scalar with string result. I could not find a way to execute my stored procedure with couple parameters. I had worked on this for all day and could not find solution for my ASP.NET MVC3 app to receive HTTP POST from client and return data against our SQL database. If you have any solution, please lead me. Thanks.

By: Deepak

Deepak — Tue, 16 Nov 2010 23:35:42 +0000

Hi Paul,

I have not worked with Silverlight much but by looking at documentation for IAsyncResult I can see that it only returns the status of an async operation. However the method signature for EndExecute is

public IEnumerable EndExecute(
IAsyncResult asyncResult
)

What do you see in the IEnumerable returned back to you? Could the value you are looking for be in it?

By: paul

paul — Tue, 16 Nov 2010 23:09:19 +0000

Hi thanks i can reurn the boolean result correct but in silverlight ( sorry this question is more sivlerlight based) because of the Asynch calls to beginexecute and endExecute
all resultants need to be converted to a resultant queryable type
i have the operation working fine the
beginexecute is fired
the stored procedure fires in the database
the callback happens

BUT i am unable to convert the iasynch result to a boolean operator?

By: Deepak

Deepak — Tue, 16 Nov 2010 23:04:27 +0000

Hi Paul,

I have not tried your example but I’m certain that returning a boolean result should be okay.

By: paul

paul — Tue, 16 Nov 2010 20:36:28 +0000

hi there thanks for the article
i was wondering if it is possible to return a boolean result which is the correction operation of the stored procedure
i am consuming the service in a viewmodel in silverlight application and want to parse the result of operation in the client callback method

service is
[webget]
public bool dostuffstoredprocedure(string arg1,string arg2)
{
private bool theboolresult= false;
try
{
CurrentDataSource.SetPassword(arg1, arg2);
theboolresult = true;
}
catch( Exception Ex)
{
// log Ex here
theboolresult=false;

}

return theboolresult;

}

By: Les Prigmore

Les Prigmore — Tue, 17 Aug 2010 19:13:02 +0000

OK, This is all looking good and I understand it completely and thank you for covering it so thouroughly. Now, using Silverlight 4, can you please, please, please show me the code to put the result set from “GetEmployeesByCity” into a DataGrid? Thank you so much in advance…..Les Prigmore

By: Deepak

Deepak — Mon, 19 Jul 2010 04:27:21 +0000

Monte,

I could not get your solution to compile.

By: Monte Baker

Monte Baker — Thu, 15 Jul 2010 15:56:39 +0000

Were you ever able to figure out what I was doing wrong. I never heard back from you (either that or your email was redirected to my spam folder)

By: Deepak

Deepak — Thu, 08 Jul 2010 00:21:37 +0000

Hi Monte,

This is turning into an interesting problem. Is it possible for you to send me your code. I can have a look and respond. my email is k a p o o r d e e p a k AT g m a i l . c o m

By: Monte Baker

Monte Baker — Wed, 07 Jul 2010 19:11:05 +0000

I have tried your exact solution using the GetEmployeesByCity Procedure in the NorthWind database. I am able to view the method when I do not include a parameter “NorthwindEmployeeService.svc/GetEmployeesByCity”, but it fails when I try to add city name “NorthwindEmployeeService.svc/GetEmployeesByCity?cityName=’London’”,I recieve a “The webpage cannot be found” error . My code now exactly matches your sample. does this provide any guidance as to what could be wrong?